Inhalation

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• Cover
• Table of contents
• Cross-industry organizations: 2023 Activities and accomplishments of the Product Quality Research Institute (PQRI)
• Industry news/Respiratory medicine news
• Improving the utility of in vitro test methods for intranasal drug delivery
• Issue focus: Instruments
• Variability in air-flow resistance of filter cartridges and glass-fiber filter discs common in the testing of inhalers
• Special section: Education
• Extra focus: Product development
• Calendar
• Web review
• Back page: The Association of Inhalation Toxicologists Workshop at DDL2023: Preclinical Medicines Development—Back to Basics